The usage or vocabulary that is characteristic of a specific group of people.
The immigrants spoke an odd dialect of English.
2) Idiom NounIdiomatic Expression, Phrasal Idiom, Phrase, Set Phrase
An expression whose meanings cannot be inferred from the meanings of the words that make it up.
Bed - a piece of furniture that provides a place to sleep; "This is that bed, on which I slept".
Clock - a timepiece that shows the time of day; "Can you turn back the clock?".
Uneven - not even or uniform as e.g. in shape or texture; "an uneven color".
Immoral - deliberately violating accepted principles of right and wrong; "He has immoral behavior".
Robber - a thief who steals from someone by threatening violence.